You searched for: Author Geological Survey (U.S.) Minerals Information Team Remove constraint Author: Geological Survey (U.S.) Minerals Information Team Subject Mines and mineral resources Remove constraint Subject: Mines and mineral resources Subject Minerals Remove constraint Subject: Minerals Institution Stanford Remove constraint Institution: Stanford Place Colorado Remove constraint Place: Colorado Data type Point Remove constraint Data type: Point Year 2002 Remove constraint Year: 2002
2002. Geological Survey (U.S.) Minerals Information Team. This point shapefile includes sand and gravel operations in the United States. These data were obtained from information reported voluntarily to th... National Atlas of the United States.